Fountain pen



s. M. sAGER FOUNTAIN PEN Filed April 24; 1930 f/vs c25" #S2/023022 vSayer Patented Julv v19. 1932 UNITED STATES SOLOMON IMI. SAGER, F EVANSTON, ILLINOIS FOUNTAIN PEN Application filed April 24,

This -invention relates to an improved type of fountain pen of the plunger filler type, constructed to eject air and Yold ink with the outward movement of the plunger, and

p causing a filling of the fountain pen barrel with a downward stroke of the plunger, said plunger and filling mechanism being provided with improved packing devices;l and an improved piston or plunger head, which, in

its innermost position, is adapted to coact with retaining ribs which separate a plurality of ink outlet passages or channels, permitting the passageA of ink vfrom the interior of the barrel around the improved piston head and` into an improved fountain pen'feed bar and section, with said section being provided with an' ink guard for obviating the accumulation of ink on the outer end surfaces of the section where the stop sleeve within the fountain en cap contacts thev stop flange of the section, thereby afl'rding an arrangement whereby the interior surfaces ofthe fountain pen cap and the 'exterior surfaces of the fountain pen section are kept clean from ink stains.

It is an object of this invention to provide an improvdtype of a plunger filling fountain pen wherein the plunger mechanisms are provided with improved packing devices for eliminating ink leakage.

It is also an object of this invention to provide an improved fountain pen of they plun er filling type wherein the interior-of the ountain pen barrel near the inner end thereof is provided with a plurality of ink outlet passages separated by guide ribs which coact with an adjustable piston or plunger head and serve to retain-the same in its proper shape and against expansion without obstructing the proper discharge ow of ink from the fountain pen barrel outwardly around the iston or plunger head on its Way to the'ink eed passage of the fountain pen feed bar. It is a further object of this invention to provide an improved fountain pen of the plunger-type wherein a plunger mechanism has telescoping engagement with a fiexible filling tube vconnected with the feed bar, and 5 "is provided with' improved packing means 1930. Serial No. 446,807.

between the plunger mechanism and said filling tube and between said plunger mechanism and thev barrel 'of the fountain pen to provide a substantially leak-proof fountain `pen construction.

A' It is furthermore an object of'this invention to provide an improved fountain pen of the plunger type wherein the plunger fstemand the filling tube are associated in telescoping relation and are constructed of flexible material to compensate for variations in the construction of parts vand to facilitate assembly.

Still another object of the invention is to provide an improved type of fountain pen wherein a filling and discharge plunger stem has an improved ported thereon and carrying a plurality of loosely associated, shiftable packing rings to insure a tight or nonleakable fit at all times Aduring the path of travel of the piston head through the length of the 'fountain pen barrel, with said shiftable packing discs compensatingfor any variations in the diameter of the interior of the barrel ink chamber inwhich the piston head is reciprocally mounted. i

Another object of the invention is to provide a fountain pen of the plunger type wherein the discharge end of the ink containing barrel is provided with a plurality of longitudinally ,disposed ink outlet or recesses separated by ribs of thickness as the thickness of the major portion ofthe barrel to facilitate a. ready discharge iiow of ink from the interior of thebarrel into the fountain pen section when the plunger head of the-fountain pen isl in its innermost position adjacent said recesses, with said ribs serving asa guide' for the piston head and actingto hold'the samein its proper shape to `obviate distortion or--over' expansion of the packing members, or the body portion of said piston head.

y It is also an objectof this invention to provide an improvedand simplified t pe of fountain pen provided wit a Eunger mechanism,l the plunger head'of whic when in its innermost position, is adapted to seat within 4the inner end of. the fountain pen ,sectionv and between,v guide ribs separating a.

assages piston or plunger head sup.

so Y tiie same proper shape, allowing ink from the ink sup- 5 ply chamber of the barrelto pass outwardly around the plunger head and enter the inner end of'the fountain pen section in which the plunger head is-seated through a plurality of notches lor openings provided at 1 spaced intervals in the inner end of said sect1on toinsure a supply of ink through the section and into the ink feed grooves forming -a art of the feeder of the fountain pen. t is an important ob'ect of this invention to provide an improve and simplified type vof fountain pen constructed with a plunger filling mechanism adapted to allow an ejection of air and sediment or ink through the ink intake tube on the outward movement 2 of the plunger mechanism from the barrel and adapted to furthermore allow a .drawingin'of ink into the barrelby an inward movement of said plunger mechanism, said plunger mechanism having improved-packing devices associated therewith to reduce ink leakage to a minimum and insuring a proper feeding of the ink from the'interior of the fountain pen barrel outwardly through a plurality of .re" cesses separated by guide ribs which serve tol 3 strengthen the barrel at the section in which the recesses are provided and afford a guide and retaining means for holding the plunger head in its proper shape and still allowlng an adequate supply of ink to be fed into the fountain pen section, which' is provided with an improved ink guard for obviatingthe accumulation of ink en -the stop ange of the section against which the shoulder of the fountain pen cap is adapted to seat when the 4 pen is closed, so that excess ink returned from the pen point and the feederof. the fountain pen is provided with a storage space within the ink guard, thereby maintaining the *various parts of the writmg end of the fountainpen and the interior of the fountain pen cap clean and free from accumulations and stains.

t-her and further important objects of this invention will be ap arent from the dis- 5 closures in the 'specification' and the acfcompanying drawing.

The invention- (in a preferred form) is illustrated in the drawing and-hereinafter more fully described.`

On the drawing;v

Figure 1 is an enlargedffra l entary elevationa view of an improve fountain n embodying the principles of this invention,

with the plunger enclosing cap shown'in sec- 0 tion and with the fountain pen cap partly broken away and also illustrated in section. Figure 2 is 'a longitudinal fra entary sectional view taken t rough the writing end of the fountain penwith .the closure cap in 5 position and illustrating the innermost tion of the plunger head positioned between the ink outlet passages and having seated coacting relation with the inner notched end of the fountain pen section.

Figure 3 is an enlarged longitudinal detail section of the outer end of the fountain pen, illustrating the telescoping relation of the ink proved paekings for obviatingleakage.

Figure 4 is a fragmentary longitudinal sectional view of the writing, end of the fountain pen, with the barrel shown in section and with the plunger head and the section illustrated in elevation and in abutting, coacting relation illustrating the normal position of said parts.

Figure 5 is a transverse detail section'of the fountain lpen .taken on line V-V of Figure 2.

As shown on the drawing:

The reference numeral 1 indicates a fountain pen barrel or. body, preferably constructed of a transparent material, but, of course, adapted to be constructed of an opaque material if desired. lThe fountain pen barrel 1 is exteriorly threaded at 2 at its inner endl and is also interiorly threaded at 3. The interior of the fountain pen barrel 1 immediately adjacent the inner end of the threaded section 3 is formed to provide a plurality ofl longitudinallypositioned inkoutlet passages or recesses 4 separated by means of a plurality of longitudinally positioned ribs or guide bars 5.5 he guide bars or ribs 5 are formed by the ink outlet passages 4 and serve to strengthen that portion of the fountain pen barrel in which the-passages are provided. Connected t`o. close the inner end of the fountain pen barrel 1 is a fountain pen sec- -tion comprising a body portion 6 having.`

inte all formed on the inner end thereof a re uce yex'teriorly threaded shank or collar 7 which threads into the interiorly'threaded portion 3-/of the barrel to permit the end of the barrel to seat tightly against a shoulder '8 provided on said section.

The,- end of the section shank 7 is beveled off to provideaa plunger head seat 9 and is also provided with aplurality of spaced notches 10 adapted to be positioned to com.- municate with the ink outlet passages or.

vintake tube and the plunger stem and the imy recesses-4 to permit ink to pass from the interior of the fountain-pen barrel into the fountain pen section 6. The outer end of the fountain pen section 6 is flared outwardly 20 to' provide the stop shoulder on the -stop 125". flange' 11..l The section body portion 6 is to provide a stop flange orfrim 11 at .the

provided with an axial passage, the inner end of'y which communicates with a chamber 13,

-provided in the threadedshank portion 7 'of thefountain pen section. The ink guard collar 12, has the passage or-inner diameter thereof slightly enlarged to provide an ink guard recess vor ink-receiving pocket 14 for vthe reception or temporary storage'of excess portion of the section and has the inner end thereof rigidly engaged in the axial passage of said section, with the inner end of the feeder shank terminating'at the chamber 13 of the shank portion 7 of said section. The feeder is provided on its upper side with a longitudinally directed ink feed groove or' passage 18, the inner end of which opens through the end of the shank portion of the feeder and communicates with the ink supply chamber 13 to permit a supply of ink to be fed outwardly through'the feed groove or passage 18 to the pen point 15.

The fountain pen is provided with a cap 19 having rigidly engaged in the closed end thereof a stop sleeve 20, the inner end of which affords a stop shoulder at 21 adapted to seat against the stop shoulder afforded by the section flange 11 When the cap is engaged over the Writing end of the fountain pen barrel. The interlor of the fountain pen cap 19` a short distance -from the open end thereof, is provided With an interiorly. threaded section 22 Which is. adapted to have threaded engagement With the exteriorly threadedlsha'nk portion 2 of the fountain pen ,barrel for the purpose of holding the cap tightly mounted in position With the stop shoulder21 tightly seated against the stop shoulder afforded byV the section ange or rim 11 and with the ink guard 12 projecting into the inner end of the stop sleeve 20 provided in the cap 19, thereby affording an arrangement permitting any excess ink remaining on the pen point or on the head section 16 of the feeder to flow backwardly into the ink receiving recess or chamber 14 provided by the ink guard extension, from which pocket the excessv ink may gradually find its Way back into thefeed passage of the feeder to be eventually returned into the chamber 13 to find its way back into the fountain pen barrel. By providing the ink guard 12, the excess ink receiving pocket 14 prevents the excess ink from lodging .against'the outer end of the ink guard sleeve or collar 12 and also prevents any of the excess ink from coming into contact with the stop shoulder prov1 e d by thestop'lange '11 of .the section, so

' that no ink is brought into contact with the stop shoulder 21 ofthe fountain pen cap. This arrangement prevents excess ink from Abeing spread to the inner surfaces ofthe fountain pen cap and also obviates the spreading of ink to the exterior surfaces of the fountain pen section, so that the Writing end ofthe fountain pen is always kept clean and free from ink stains.

Rigidly engaged in the -outer end of the fountain pen barrel 1 is a barrel head or plunger guide 23, the inner end' of which is grooved or votherwise shaped to permit the same to be rigidly fitted into the outer end of the barrel 1. rThe barrel head is axially passaged and-is provided with an enlarged chamber or recess 24 in the outer end thereof, in which a packing unit is rigidly secured or held in position by means of an externally threaded retaining thimble or bushing 25, one end of Which is threaded into the internally threaded outer end of the packing unit recess or chamber 24, as clearly illustrated4 in Figure 3, for the purpose of holding the packing unit in osition. The outer end of the threaded bus ing 25 has removably threaded thereon a hood or e'nd cap 26 which completes the barrel or body' portion of the fountain pen. The packing unit is ofimproved or special construction, and comprises a plurality of packing rings or lapertured discs 27, each of which comprises one or more sections each consisting of a thin middle layer of powdered or sheet cork positioned between sheets Vor layers of cotton cloth or paper glued or otherwise secured to the `outer faces of the layer of cork and provided with a liquid coating ofcellulold 'or pyroxyline. The plurality of pack"- lng rings 27 are seated adjacent one another, W1th the innermost packing ring 27 seating against the inner end Wall forming the' packing chamber 24. Positioned adjacent the outermost packing ring 27 is a packing' ring or disc 28 which is constructed of hard rubber or other suitable material. Engaged to the outside Aof the hard rubber packing rin 28 is a packing ring 29 constructed of so t rubberor other suitable material and having the inner diameter thereof slightly smaller than the inner diameters of the packin rings 27 and 28 to permit the same to exten into the axial passage of the closure head .23 to serve as a wiping member of the pack- 115 ing unit. Positioned to the outside of the soft rubber ring or Washer 29 is another ring or disc 30 constructed of a hard material, such as hard rubber or the like. vThe various packing members thus described are 20 arranged as mentioned and are adapted to be l tightly held in position by means of the retaining bushing 25, the outer threaded end of which serves as a means for attaching -the closure'hood or cap 26. The inner diameter 125 of the bushing 25 is slightly larger than the diameter -of the axial passage through the v closure head 23 and affords a chamber 31.

For thev purpose of filling the fountainV pen barrel -1 with ink, a plunger mechanism 130 is provided.JA The filling mechanisms for the fountain pen consist of an ink intake and outlet tube 32 constructed of flexible hard rubber or other suitable flexible material and 5 has one end thereof securely projecting into the inner end ofan ink intake duct, conduit or passage 33 which extends longitudinally'through the feeder or feed bar 16-17 and 'hasthe outer end thereof terminating in the under side of the tip end of Vthe fe'edv bar head section 16. Y The flexible ink intake tube 32 projects through the barrel 1 and through the passage provided in the barrel head 23, .with the open end of said flexible ink intake tube positioned beyond the end n of the retaining bushing 25. Slidably engaged in the fountain pen barrel 1 in telescoping relation with the flexible ink intake tube 32 is a plunger stem or hollow rod' 34 constructed of'hard flexible rubber or other suitable flexible material which has a tight, non-leakable t where it passes through the packing unit provided in the barrel head 23. The outer end of the plungerstem 34 is provided with an externally threaded portion at 35 to permit an internally threaded plunger cap 36 to be threadedv thereon to close the `outer end of said stem. The cap is provided with a partition or end closure wall 37 and with a rim extension'38 `which 'provides' a pocket' in the outer end of the cap 36 for the reception of la removable ink -eraser 39. Within the-plunger stem cap-36 and abutting the inner surface of the partition or closure /end plate 37 ofv said cap is a packing collar or sleeve 4Q constructed of flexible or compressible packing -"inateri`al and havingthe outer end vso positioned' that, when the closure cap 36 is threaded onto the exteriorly threaded portion of the plunger stem'34, the end of said packing sleeve is adapted to\be brought into contact with the end of the plunger stem, thereby causing the packin sleeve to be compressed, so that the inner iameter thereof will be reduced, causing a tight, nonleaking tit. around the exterior surface of the ink intaketube 32. By tightening the cap 36 on the outer end of the plunger stem 34,. it will be noted that 50 the compressiblepacking sleeve or collar 40 may be adjustably compressed from time to time to permit the packing -sleeve`l to have a tight, non-leakable tit around the ink intake tube 32` when the plunger stem is in its innermost'position, as illustratedin Fig.-

ure 3- -When the plunger is in its innermost position, the innererrd ofthe plunger cap 36 projects' intov the recess 31 provided in the bushing 25, and said cap 36, together l with thei eraser 39 engageduinthe uter end o n thereof, is adapted to be enclosed y means of the hood or capt26.-f A Y. The inner end of the plunger stem'34 is externally threaded at '41,'and is provided with .65 one or more apertures 42 adjacent the inner end of -the threaded section 41, as clearbr illustrated .in Figure 2. At the inner-end of the threaded portion 41 ofthe plunger stem, .a stop shoulder is formed, against which a retaining disc or ring' member 43 is adapted to seat to be clamped against the inner end of a plunger or piston head 44 which is internally threaded at one -end to permit the i plunger or piston head to be threaded onto the threaded end 41 of the plunger stem 34. The retaining disc 43 is thus clamped between the shoulder on the plunger stem 34 and. the innerr end ofthe plunger head 44. The outer end of the plunger or piston he'ad 44 is provided with anl 4 apertured end plate or flange 45 to form a stop shoulder for the outer end of a compressible packing sleeve or collar 46 which is secured in the plunger or piston head 44 and is adapted to be compressed between the end of the threaded section 41 of the plunger stem and the .stop ,flange 45 of the plunger or pistonhead, so y that the packing sleeve or collar is adapted to be.eompressed to form a tight, non-leakable lit around the ink intake tube 32. By thread'- ing the plunger or piston head 44 further'l onto the threaded end 41 of the plunger stem 34, it Jwill be noted that the packing sleeve or collar 46 may be compressed from time to time to adjust the same to provide a` tight or 95 non-leakable fit around the ink intake tube 32.

Engaged around the plunger or piston head 44 betweenthe retaining disc `or plate' 43 and a peripheral vflange or ribV 47, integrally formed on the plunger head, area plurality of packing rings or discs 48which are loosely positionedbetween the flange 47 of the piston head and the retaining disc 43 and have .the inner diameters thereof slightly greater than the exterior 'diameter of the' piston head 44 to permit the packing rings 48 to be shifted diametrically with respect to c one another to permit the outer peripheral surfaces thereof to have a tight, non-leaking fit Vwith the interior surface of the fountain. pen barrel 1. The shiftable packing rings or discs 48 forming a part of the plunger mechanism'are of special construction, similar to the construction of the packing rings or discs 27 and each comprises an inner thin layer 115 of powdered or sheet cQrk secured between outer sheets-or layers of paper or cloth -impregnated or coatedwith a liquid'solution of Celluloid or pyroxyline. P With plunger packing 'discs 48 constructed 'as-described and loosely carried on the plunger head, said discs are adapted to adjust themselves; as the plunger head -is moved back and forth through the length ,bf the barrel 1 to compensate-for any variations in the inner diameter or the'finish of the interior o f thebarrel 1, softhata tight lit is insured. When 'the plunger is in its innermost position, as illustrated in Figure 2, the plunger .head pack-y ing discs 48 are maintained in position be- 130 position, the outer end of the plunger head body portion 44 projects into the chamber 13 provided in the inner end of the fountain pen section 6, and the peripheral iiange or rib 47 of the plunger head is adapted to sea-t against the seat 9 provided in the inner end of the section 6 without stopping oii" the communication between the interior of the barrel 1 and the interior of the fountain pen section chamber 13. due to the fact that the ink from the interior of. the fountain pen barrel 1 passlng through the passages or recesses 4 around the plunger head packing discs 48 is permitted to pass through the notches of the section shank 7 into the chamber 13 to be fed to the fountain pen point through the passage 18 provided in the feeder bar.

In the normal'position of the parts of the improved plunger type fountain pen of this invention, the plunger `mechanisms are in their innermost positions, as illustrated in Figures 2 and 3, with the eraser-carrying head or handle end of the plungerstem enclosed by means of the hood or closure cap 26. In the innermost position of the plunger mechanisms, the flange or peripheral rib 47 ofthe plunger or piston head is seated against- 1 the seat 9. provided in the end ofthe threaded shank 'portion 7 of the fountain pen section 6.

With the plunger mechanisms in their innermost or normal closed position, the plunger or piston head is positioned between the various ink outlet passages or recesses 4 and between the ribs or bars 5 which separate the recesses and afford not only a guide means for the plunger head but also act as a means for preventing the plunger head packing discs -or rin s 48. when positioned adjacent Y or betweent e recesses 4 from expanding out of shape, which has been a considerable source of trouble in fountain ,pens of the plunger typewherein a continuous inner peripheral groove is provided in the fountain pen b arrel to permitV ink from the interior of the barrel tov pass around the plunger head and into the fountain pen section. In the lnner-v most position of the plunger mechanisms, the plunger stem 34 is-telescoped or engaged over the ink intake flexibleV tube 32, the outer end of .which projects tightly into the packing sleeve or collar 40, there y closing off communication with the interior of the ink inv take or supply tube 32 and the interior chamber provided by the hollow or passaged plunger `stem` 34. The improved packing units mounted within the recess provided in the head member or' section 23 of the fountainv penprovide a non-leakable joint around the plunger stem where it projectsv through thel head 23. Another non-leakable joint 1s provided between the exterior of the ink intake tube 32 and the plunger head unit which contains the compressible packing sleeve or collar 46 which fits tightly around the exterior of the tube 32, as clearly illustrated in Figure 2.

The improved fountain pen of this invention is of the plunger type in which the interior of the fountain pen barrel 1 is adapted to be cleaned out or emptied of any sediment, ink and the like which may be engaged within the fountain pen barrtl 1 or within any of the passages therein. To iillthe fountain pen,

the main cap 19 is removed from the writing end of the pen and the hood or auxiliary cap 26 is then. unthreaded from the bushing 25, exposing the head or handle, end 38 ofthe plunger mechanism. The head end of the feeder bar is now positioned over a container of any kind adapted to receive the old ink and sediment from the fountain pen barrel.

The ejection of the old ink and sediment is brought about by pulling outwardly on the plunger stem 34, thereby causing the plunger or piston head to slide upwardly within the I l barrel 1 to cause any ink within the barrel 1 to be forced outwardlythrough the apertures 42 into the interior of the lunger stem 34 and into the inner open end oi) the flexible tube 32 through which the ink and any sediment is adapted to be forced outwardly through the passage 33 provided in the feed bar. It will thus be noted that, on the outward stroke of the plunger mechanism, the interior of the fountain pen is adapted to be cleared of sediment and any old ink which may be stored therein or left from a previous filling. When the interior of the fountain pen is cleared of sediment, old ink or any other material, the

ftip' or head end of the feed bar is adapted to be inserted in a fresh supply of ink andjthe plunger mechanism is moved inwardly, causlng a vacuum to be produced between the plunger head and the head member 23 forming a part of the body of the fountain pen, thus causing an inward suction u wardly through the passage 33 and the'iiexi le tube' of the plunger cap or handle 36 so that said packing sleeve or collar 40 isitightly engaged around the exterior surface of the outer end of theftube 32, thereby closing 'off the supply of ink into the plunger stem 34. It will thus be noted that the 'fountain pen is adapted to be filled with the inward stroke of the piswhich is now read for further use,'since the su ply of ink has een replenished.

en the plen 1s put into'use, ink-from the ink supply amber of the barrell is permitted to flow outwardly through the pluralityof passa es or recesses 4 around the packing discs orming art of the plunger ead mechanism throug the notches or recesses 10 of the shank portion 7 of the fountain n section into the chamber 13, from Whic point the ink is adapted to enter the feed groove or passage 18 inthe feed bar to flow outwardly to supply the pen. point 15 with ink.

After the fountain pen has been in use and isno longer required for writing at the time being, the writing end of the fountain pen is adapted to be closed by means of the main closure cap 19 which is engaged over the pen point end of the barrel in the customary manner and is then threaded into position by causing the threaded section 22 thereof to,

be threaded onto the threaded portion 2 0f the fountain pen barrel 1. v As the cap 19 is engaged in position, the shoulder121 provided on the inner end of the stop sleeve 20 enga d within-the closed end of said cap is a apted to be' brought into (seating en gagement with the sto surface of the flange or mouthpiece 11 of the fountain pen section 6, as clearly illustrated in Figures .1 and 2. With the cap 19 engaged in position as described, the ink guard `12 projects into the Vinner endof the lsleeve 20. With the fountain pen inclosed posit-ion, the same is adapte'd to be engaged in a pocket or other suitable support with the' pen point end projecting upwardly, thereby permitting any'.

the ink guard or into contact with the stopA 66 flange or mouthpiece 11 ofthe fountain pen section 6. This arrangement obviates the settling of ink on the flange 11 or the exterior ofthe ink guard, so that excess ink is not distributedto the interior surfaces of the fountain pen' cap 19 or tothe exterior sur-- faces of the ink guard 12 or the fountain pen sect-ion 6, lso that the vvarious parts of the fountain pen are so that the fingers `o a person using the pen are not apt to' become stained with excess With .a definite recess or pocket provided within the ink guard `12 for the reception of kept in a clean condition,

the excess or returned'ink from the pen point. A

is prevented from' coagulating on `the Vouter end of the ink guard- 12 and on the mouthpiece or stop flange of the fountain pen section, andthe' excess ink is instead permitted to gradually flow back through the feed bar passage 18 into the section chamber 13- and the outer end of the feed bar, excess ink a through the notches 10 and the passages or recesses'4 into the ink supply chamber of f the fountain penbarrel 1.

In case the fit of the packing collars 46 I and 40 around the exterior'of the ink intake tube 32 become loose, the packing collar 40 'may be adjusted or compressed bv simply necessary, it will, of course. be understood.

that the packing collars -or sleeves 40 and 46 may be replaced by new flexible or compressible packing members to insure a proper nonleaking fit around the tube 32,

Attention is calledV to thev novel construction of the plunger head mechanism wherein a plurality of special packing rings or discs4 48 are loosely engaged around the exterior 'of the plunger or piston head 44 between the piston head ilangecor rib 47 and the retaining ring or ldisc 43. With the diameter of the' opening in the rings or discs 48 being slightly greater than theexterior diameter of the piston` or plunger head 44, the packing discs 48 are adapted to vbe shifted diametrically with respect to one another and are also adapted to be shifted longitudinally on the plu'ngerhead 44 between the flange vl-47 and the retaining ring or discf43. This novel arrangement permits the packing rings or discs 48 to shift with respect to one another as the plunger mechanism is moved inwardly and outwardly within the fountain pen barrel 1, so tna't the plunger mechanism may always have a tight, non-leaking lit. with the inner wall of the barrel 1 tocom'pensate for r any irregularities in 'the/bore or finish of the interior of the .barrel and furthermore providing anv arrangement insuring proper?- filling of the fountain pen barrel on the in-- ward or downstroke ofthe plunger mecha- 13 nism and a complete cleaning out of the in-r terior of the barrel and the grooved parts of the fountain pen -on the outward stroke of the. plunger mechanism.

For the purpose' of assisting and advising a user of the fountain pen as to the uuantily of ink contained within'the barrel 1, said barrel is preferably constructed of a transparent material which will permit the quantity of ink contained Within the barrel to be readily discernible, so that a person can readily tell when the fountain' pen needs re-I filling.

desired, a pencil, ,eraser 39 in the chambered outer end of the plunger cap or handle 36. An eraser is thus readily accessible at any time it is required by merely removing the hood or auxiliary cap 26 *from the head section 23 of the fountain pen body.

It will, of course, be understood that various details of construction may be varied through a -Wide range without departing from the principles .ofthis invention, and it is, therefore, not purposed to limit the patent granted hereon otherwise' than necessitated by the scope of the appended claims.

I claim as my invention:

1. A fountain pen comprising a body section, a feed bar and a pen point engaged in one end thereof, a flexible filling tube extending' from said feed bar into said body section, a plunger stem in said body section slidably engaged over said flexiblel tube, a plunger head engaged on said stem and surrounding said flexible tube, adjustable packing means in said plunger headsurrounding said tube and adapted to be adjustably compressed with the adjustment of said stem into said plunger head, a closure cap adjustably engaged on one end of said plunger stem, and an adjustable packing in said cap engaged around said exible stem when the plunger stem is in its innermost position and adapted to be compressed to provide a tight fit around said tube with the adjustment of said cap on said plunger. stem.

2. A fountain pen comprising a body secl tion, a pen pointand a feed bar engaged in one end of said body section, a passaged `closure head secured in-the opposite end o f said body section, a fiexible filling tube connected with said feed bar and projecting upwardly through the body section and through said closure head, a packing unit seatedin said passaged closure head, an zapertured plung er stem slidablyengaged through said elo-4.

. sure head and the packing .unit thereof and 9 having Va loose telescoping engagementf around saidflexible filling'tube, a closure cap.

adjustably engaged on one end ofsaid plungerstem, an adjustable packing member contained in saidv closure cap' and adapted to be 3, adjustably compressed with the adjustment of said cap on said plunger stem to cause a` tight fit of said packing member around the exterior of said filling tube when the plunger stem is in its'innermost position, a plunger head adjustably engaged on the inner end of said plunger stem, a packing member engaged in said plunger head and around said filling tube and adapted to be adjustably compressed to provide a tight, non-leaking joint around said filling tube, and a plurality of relatively shiftable packing members adjustably engaged on the plunger head for y j coaction with the interior of the body sec- Another important improvement in the` fountain pen is the provlsion of an 111k, or, 1f

tion of the fountain pen.

3. A fountain pen comprising a body section,a pen point and a feed ybar engaged in one end of said body section, a passaged closure head secured in theopposite end of said body section, a. flexible filling tube connected with said feed bar and projecting upwardly through the body section and through said closure head. a Apacking unit seated in said closure head, an apertured plunger stem slidably engaged through said closure head and the packing unit thereof and having a loose telescoping engagement. with 'said flexible filling tube, a closure cap adjustably engaged on one end of said plunger stem, an adjustable packing sleeve secured in said closure cap and. adapted to be-adjustably compressed with the adjustment of'said closure cap on said plunger stem to cause a tight-fit of said Y packing sleeve around the exterior of said filling tube to close said tube,from communication with the interior of said plung` er stem-when said plunger stem is in its innermostposition,` aplurality of spaced ribs formed in one end of the body section and providing a pluralitv of ink, outlet passages. a plunger head adjustably engaged on the inner end of said plunger stem. a 'packs' .l mg sleeve engaged 1n said plunger head and around said filling tube and adapted to be adjustably compressed with theadjustment of said plunger stem into said plunger head, and a plurality of relatively shiftable packing members adjustably engaged on 4the plunger head adjustably. adapted to fric-v tionally fit the interior surface of the body section when the plunger head is recipro- Vcated andlso adapted to be confined to their proper shape .by said ribs when the plunger ead is in its innermost position, permitting the'escape of ink from the body sec-tion outwardly through the outlet grooves around the plunger head and into the feed bar to supply the pen point with ink. J

4. A fountain pen comprising a body section., a feed bar and a pen 'point'engaged in one end thereof, a filling tube connected with said feed bar andprojecting into said body section, a plungermechanism disposed in the body section having the parts thereof adjustably connected one with the other, and

a plurality of packing units engaged within said lunger mechanism and surrounding said filling tube adapted to be adjustably compressed with the adjustment of the various members forming the plunger mechanism to provide a non-leakable fit between the filling tube and said plunger mechanism.

-5. In a fountain pen of the class described, the combination with a barrel section, a feed bar engaged in one end thereof, a filling tube connected with said feed bar and projecting into saidbarrel section, a plunger mechanism reciprocally mounted in the barrel section l and having telescoping engagement with the filling tube, said plunger mechanism constructed of a plurality of adjustably coni "nectedparts, and a plurality of packing s units enclosed. by said plunger mechanism and positioned between the parts thereof adapted to be adjustably compressed with the adjustment of said plunger mechanism parts with respect to one another to cause the packing units to be maintained in tightfitting,.frictional engagement with' said filling tube.

6'. A fountain pen comprisin a barrel section, a feed bar in one end of t e barrel s'ecv tion, a filling tube connected with said feed ,bar and projecting into the barrelv section,

a sectional lplunger mechanism in the barrel lsection having telescoping'engagement with .the filling tube to discharge air and sediment through the filling tube on the outward movement of the plunger mechanism with re, lspec't to the barrel A'section and further adapt-` n ed toallowr a drawing of `ink into the barrel 'section through the filling tube and the Aplunger mechanism with an inward movement of said plunger mechanism, and a plu- 'rality ofv packing sleeves positioned within the plunger mechanism adapted to be compressed with the adjustment of the plunger mechanism sections with respect'to one another vto maintain a non-leakable sliding fit between the plunger mechanism and said filling tube, with one of said packing sleeves serving to`close off communication between` the interior of the filling tube and the intey' rior of-said plunger'mechanism when the lunger mechanism is inl its innermost pojecting into one end o 7 LA fountain pen of theclass described comprising atbody section, a feedbar engagedin oneend thereof vand having a filling passagetherethrough, a filling tube prosaid fillin' passage I and extending upwardly into the ody section, a filling 'plunger of hollow construcf tion, adjustable means in the plunger adapted to fit snugly but shiftably over the filling v' tube, and an adjustable packing unit within the plunger adapted to be moved out of engagement with said filling tube to provide a lling communication through the feed bar passage and filling tube and through the plunger around said tube when'lthe plunger is operated and ada ted to shut off communication between the interior of said tube and the interior of said plunger when the plunger is in its innermost positlon with the acklng ungt engaged around the end of sai filling tu e.

8. A fountain pen of the class described i comprising a body section, a feed barengaged in one end thereof and having a filling passage, a filling tube engage in said feed bar passage and projecting pwardly into the body section, a filling pl n er of hollow construction having adjust-ab e acking means therein 'to lit snugly and shi ablv'over thefilling tube, said plunger having the interior thereof in communication with the interior -3 of said tube when the filling plunger is moved out of its innermost pos1t1on, andan adjustable closure unit engaged in the filling plunger adapted to be moved into snugfitting engagement with one end of the filling tube when the filli'ng plunger is in its innermost position to shut off communication between the interior of said tube and the interior of said filling plunger.

9.' In a fountain en of the class described, a movable ink fil ing plun er mechanism consisting of a plunger hea an apertured plunger stem adjusta ly'c'onneeted with said scribed, a movable vfill/ing plunger mechavnism comprisinga pistonhead, a packing unit engaged therein, an/apertured plunger stem adjustably engaged in saidplunger "9| head, a packing unit in said plunger head adapted to be enga ed by said plunger stem.

head to contact the packing unit and cornpress the same, a plurality of relatively shift'- able packing members engaged around)the plunger head, a closure cap adjustably en-.

gaged on the plunger stem, and a packing unit in said closure cap adapted to be'con' tacted and compressed by the Aadjustment, of said closure cap with respect to the plunger stem.

'1.1. In a fountain pen of the class described, the combination wlth an in k intake tube, of

an ink, filling plunger'having telescoping engagement with said .tube and comprising a plunger head, relatively adjustable packing members `movably engaged von said .plunger head, a packing unit in said plunger head engaged around said tube, an apertured plunger stem adjustablyengaged in said 'plunger head and contacting said packing'unit to permit the same to be adjustably compressed, a

closure-cap adjustably'engaged on one end of said plunger stem, and a packin unit in said closure cap adapted to be a justably compressed between the closure cap and said serving as a closure means for shutting offA communication betweenthe interior of said tube and the interior of said plunger mechanism when the plunger mechanism is in its innermost position with respect t'o said tube.

13. A fountain pen of the class describedA comprising a barrel section, having a pluv nected with said feed bar and projecting uprality of ink outlet passages provided iI the .interior of one end thereof, a notched section engaged in one 'end of said'barrel section with the notches thereof -in communication with said passages, a feed bar engaged in said notched section, an ink intake tube con-` wardly into the barrel section, av lunger mechanism engaged in said barrel section and having telescopmg engagement with said tube and adapted in its innermost position to seat in the notched end of said notched section, said notches permitting escape of ink from said outlet passages when the plunger mechanism is seated in said notched section, and a pluralit of relatively shiftable packing members a justably enga ed on thev plunger mechanism for coaction wlth the interior of said barrel section, said relativel shiftable packing members adapted to ad just themselves to conform to the interior formation of the barrel section when the plunger mechanism is operated.

14. In a fountain pen of the class de-v 15. In a plunger t pe fountain pen of the vclass described, a p linger. mechanism 'comprising an aperturedplunger stem, a plunger head adjustably engaged on one end there-- of, a packing unit between' said plunger head and said stein, afperipherhl flange integrally of a-sectio'n engaged in oneend of said barrel formed around said plunger heada stop disc engaged between the plungerhead and a sto shoulder formed on saidstem, a plurallty of relatively shiftable packing members engaged on said plunger head between said flange and'said stop disc, a cap adjustably engaged on the opposite, end of said stem,

and a packing unit between said cap and said stem.

' v16. In a 'fountain pen, of the plunger type, the combination with an ink barrel having a plurality of ink passages provided longitudinallyv near one end ofthe inner face thereof and separated by a plurality ofguide bars of a section having a chambered end enga e in one end of said ink. barrel and a plura ity of notches in said chambered end with thev notches in communication with said ink passages, and a plunger reciprocally mounted in said ink barrel andadapted in its innermost position to seat against the notched end of said section between said guide bars which retain the plunger in proper shape and permit the escape of inkfrom said inkvbarrel through said passages and through the notches of sald section. y

17. In a fountain pen of the class described, the combination with a transparent barrel having a plurality of ink outlet passages provided in the interior neary one end thereof,

said passages affording a plurality of reinforcing'bars for strengthening the recessed portion of the barrel, a section, a notched shank integrally formed on one end thereof for -engagement; with said barrel with the notches ofI said shank aiordin communication between said passages an the interior of said section.

18. In a fountain pen vof the class described, l

the combination with a barrel having a plurality of link outlet passages provided longi-` tudinally in the interior near one end thereof,

los

portion of thebarrel a section, and a threaded shank integrally f of forenga ement with said barrel` andl haying aV plura ity of notches in the rim of said shank aifordin communication between said passa es and t einterior of said section.

19. n a fountain pen of the class described, the combination-with a barrel, of a plunger mechanism reciprocally mognted therein, a pair ofstop members engaged on sa1d plunger mechamsm near one yend thereof, and a plurality of packing members engaged o n said plunger mechanism shiftable lon tudinally between said.\stop members an hav-iing relative diametrical shifting movement with respect to one another.

20. In a fountain pen of the class described, I

ormed onone end thererality of'separated ink outlet passages provided in the interior. near one end thereof,

I and having a chamber in' the inner end there- I of and notches in the wall of said chamber adapted to be positioned to register with the passa es of said barrel.

2,1. n a fountain pen of the class described,

the combination with a transparent ink conscribed my Illinois.

taining body section, of a plunger Vfilling mechanism therein, and a plurality 1of pack-l ing members diametrically and longitudinally shiftable thereon.

-In testimony whereof I have hereunto sub name at Chicago, Cook County,

SOLOMON" M. SAGER. 

